@-o-keyframes not supported

[k88hudson]

@-o-keyframes spin{
    0%{ -o-transform: rotateX(-10deg) rotateY(0deg); }
    100%{ -o-transform: rotateX(-10deg) rotateY(-360deg); }
}

Results in:

line 12, col 1, Error - Unknown @ rule: @-o-keyframes.